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A. Michael Parfitt, MB, MRCP

Arch Intern Med. 1969;124(5):544-556.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

The association between soft-tissue calcification (STC) and uremia has been recognized for more than 100 years,¹ but it is only since the widespread use of regular dialysis and transplantation that this has become an important problem.²

Virchow¹ surmised that calcium salts dissolved from bone were carried in the blood and deposited at some distant site to form "calcium metastases," a process analogous to the dissemination of cells from a primary neoplasm. In a review of 88 patients,^" the underlying cause of metastatic calcification was nonmetabolic bone disease in 35, uremia in 23, primary hyperparathyroidism in 21, and vitamin D intoxication in 9. The lesions typically occur in the kidneys, stomach, lungs, and the left side of the heart, supposedly because of relative local alkalinity.⁴ The essential feature of metastatic calcification is its occurrence in previously normal tissue exposed to an abnormal chemical environment, in contrast to dystrophic calcification which occurs in . . . [Full Text PDF of this Article]

Author Affiliations
Los Angeles

From the Cedars-Sinai Medical Research Institute and the departments of medicine, Cedars-Sinai Medical Center, Los Angeles, and the Department of Medicine, University of Queensland, Brisbane, Australia. Dr. Parfitt is now at the Royal Brisbane Hospital, Brisbane, Queensland, Australia.

Footnotes
Received for publication May 23, 1969; accepted June 19.

Reprint requests to Department of Medicine, Clinical Science Building, Royal Brisbane Hospital, Brisbane, Queensland, Australia (Dr. Parfitt).

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